Mine is OOO for Out Of Office. I always misread it in my head like a ghost and it takes me a few seconds to process. It also doesn’t translate to speech—you have to say the whole thing.
Interested to see if others have similar acronyms they beef with.
IKR required a search to figure out. Autocorrect takes care of these typical phrases. Imo the only one I like to use is imo for some reason.